Related by context. Frequent words. (Click for all words.) 70 Carbon monoxide 68 carbon monoxide poisoning 67 CO poisoning 62 carbon monoxide leak 62 carbon monoxide 57 carbon monoxide fumes 56 Hypothermia 56 Carbon Monoxide 55 Sleep apnea 54 Whooping cough 54 Bacterial meningitis 53 propane leak 52 Smoke detectors 52 lightning strike 51 electrical malfunction 51 carbon monoxide CO 51 Slick roads 50 sudden cardiac arrest 50 Legionnaires disease 50 Atrial fibrillation 49 Listeriosis 49 Meth lab 49 hypothermia 49 bacterial meningitis 49 Secondhand smoke 49 Smoke alarms 48 Rip currents 48 Botulism 48 smoke inhalation 48 Eastern Equine Encephalitis 48 Cigarette smoking 48 bacterial infection 47 Eastern equine encephalitis 47 Norovirus 47 Icy roads 47 Lead poisoning 47 colorless odorless 46 lightning strikes 46 Arson 46 toxic fumes 46 Downed power 46 Staph infections 46 drug overdoses 46 Dehydration 46 norovirus 46 sudden cardiac death 46 tick bites 46 boating accidents 46 flashover 46 Underage drinking 46 whooping cough 46 West Nile virus 45 inhaling smoke 45 fine particle pollution 45 salmonellosis 45 Break ins 45 Slippery roads 45 viral meningitis 45 carbon monoxide detector 45 bacterial pneumonia 45 hemolytic uremic syndrome 45 mosquito borne illness 45 Binge drinking 45 Freezing temperatures 45 ventricular fibrillation 45 mosquito borne virus 45 rotten egg smell 45 severe allergic reactions 45 mosquito borne 45 respiratory illnesses 44 Seasonal flu 44 heatstroke 44 fatal 44 Salmonella bacteria 44 particulate pollution 44 gastrointestinal illness 44 space heaters 44 lung ailment 44 hantavirus 44 Cardiovascular disease 44 myocarditis 44 respiratory illness 44 respiratory ailments 44 Accidents 44 Flooding 43 Pertussis 43 allergic reactions 43 oxygen depletion 43 hydrogen sulfide 43 obstructive sleep apnea 43 Swine flu 43 brush fires 43 overdoses 43 fire marshal 43 cardiac arrest 43 staph bacteria 43 Freezing rain 43 Fire Marshal 43 waterborne disease 43 Radon 43 West Nile Virus